Apart from the fact that the room is big clean and nice, his place is also near the BTS and the express ferry pier which guests would easily reach top tourist destinations in BKK. There are a a lot of shops and local restos around the area and if you are tired to roam around, two 7/11 stores are very near his place.
In my Airbnb experience, Ben would be my topmost favorite host among them all. His concern for his hosts is really family-like. If this is the first time you visit BKK, he could suggest places you could visit and gives suggestions/tips so that you could avoid being ripped-off by tour packages.
If ever I go back, I would gladly book his place again.